Shinobus fruit "matures things". Its kinda like a hybrid of Tokis fruit only moving forwards in time and Bonneys age manipulation.
We have similar fruits in One Piece to each other so this really isn't so ridiculous imo. But its still ridiculous in the plot convenience sense like Tamas fruit definitely.
Her fruit kinda reminds me of Shigarakis quirk too tbh with the decay aspect it has.
I think both are time related, they accelerate growth, erosion, decay etc whatever.
I can't even believe that not only is Robin getting a proper/major solo fight, she's fighting a giant spiderwoman (Odaa take on Jorogumo) AND Robin is using haki especially!
Giant demon Robin coated in haki? Jinbei part of the crew officially with a badass solo fight and more to come?
Luffy and Zoro facing two Yonkos at once with help from Kid, Law and Killer?
Sanji facing a Calamity?
As much as I hate Wano and Onigashima (Onigashima not as much hate), this is AMAZING!
I've dreamt of these moments for years and cannot believe they are real! It just genuinely feels overwhelmingly too good to be true!